U.S. patent number 3,729,207 [Application Number 05/133,911] was granted by the patent office on 1973-04-24 for snow ski training device.
Invention is credited to Schuyler Reynolds.
United States Patent |
3,729,207 |
Reynolds |
April 24, 1973 |
SNOW SKI TRAINING DEVICE
Abstract
A training device for skiers in the form of a pair of skate
boards for attachment to the feet of the skier and adapted for
sidewise rolling movement over a supporting floor surface with a
friction brake responsive to sidewise tilting or "edging" of the
boards to control sidewise rolling while permitting sidewise
pivoting of the boards.
Inventors: |
Reynolds; Schuyler (Columbus,
OH) |
Family
ID: |
22460870 |
Appl.
No.: |
05/133,911 |
Filed: |
April 14, 1971 |
Current U.S.
Class: |
280/11.208;
482/71; 280/809 |
Current CPC
Class: |
A63C
5/035 (20130101); A63B 69/18 (20130101) |
Current International
Class: |
A63B
69/18 (20060101); A63C 5/06 (20060101); A63c
017/14 () |
Field of
Search: |
;280/11.2,11.37R,11.1BT,11.1R,11.1BR,11.19 ;272/57B |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
|
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1,192,961 |
|
May 1965 |
|
DT |
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1,197,362 |
|
Jul 1965 |
|
DT |
|
1,516,075 |
|
Jan 1968 |
|
FR |
|
Primary Examiner: Hersh; Benjamin
Assistant Examiner: Smith; Milton L.
Claims
I claim:
1. A ski training device comprising an elongated, generally flat
board for attachment to the foot of a person; wheel-supporting axle
means carried in depending, relatively spaced parallel relation to
the central longitudinal axis of said board; a plurality of wheels
rotatively carried on said axle means at spaced intervals along the
length of said board and supporting said board for sidewise
movement on a supporting surface; and brake means including a
friction block carried on said axle means beneath said board and
arranged to be pressed into frictional engagement with such
supporting surface upon transverse tilting of said board to retard
sidewise movement of said board on such surface.
2. A ski training device according to claim 1, wherein said
friction block is adjustable longitudinally of said board.
3. A ski training device according to claim 1, wherein said
friction block includes a resiliently compressible member adjacent
the undersurface of said board arranged to progressively increase
the coefficient of friction between said block and such supporting
surface with a progressively increasing angle of tilt of said
board.
Description
BACKGROUND OF THE INVENTION
This invention relates generally to ski training devices and more
particularly to a pair of skate board-type devices for attachment
to the feet of a skier by means of which both the novice or skilled
skier may simulate and practice certain skiing techniques.
In the past, various types of ski training machines or devices have
been proposed, but by and large, such prior art training machines
or devices comprise relatively large size, expensive, stationary
structures on which a skier must stand with his skis on to practice
or simulate various movements, turns or the like. More recently,
roller-mounted skis, commonly called "turf" skis have been made and
sold for use on grass and other non-snow covered slopes as a
substitute and/or training aid for skiers. However, the use of
so-called "turf" skis requires for their enjoyment a relatively
large outdoor area and favorable weather conditions. Also, the
roller system employed in "turf" skis is arranged to provide for
antifriction movement of the skis in a generally longitudinal
forward direction over the supporting ground or turf surface.
SUMMARY AND OBJECTS OF THE INVENTION
The present invention provides a ski training and/or exercising aid
in the form of a pair of skate boards which are arranged for
attachment to a skier's feet by means of the usual ski boots and
ski bindings, and wherein each of the skate boards includes an
undercarriage made up of a plurality of relatively spaced apart
wheels or rollers arranged for rotation about an axis extending in
parallel, longitudinal relation to the skate board, thereby
providing for sidewise or transverse movement of the skate board
and the skier, rather than forward or backward movement thereof,
and wherein each skate board is equipped with a friction brake
engageable with an underlying supporting surface and actuated by
transverse tilting or "edging" of the skate board to control
transverse rolling and/or pivoting movement of the board.
The principal object of the present invention is to provide an
inexpensive, yet efficient ski training aid which may be used on a
horizontal or inclined indoor floor or platform surface or on
outdoor pavements to teach the novice and enable the skilled skier
to practice and simulate various skiing techniques required for
proficient skiing.
Additional objects and advantages ambient to the present invention
will become more readily apparent from the following description
and the accompanying drawing.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a side elevational view of a ski training device
according to this invention showing an attached ski boot and
binding in broken lines;
FIG. 2 is a perspective view looking toward the bottom or underside
of the training device;
FIG. 3 is a front end elevational view looking approximately from a
plane indicated by the line 3--3 of FIG. 1;
FIG. 4 is a diagrammatic end elevational view showing the
application of the brake by the transverse tilting or "edging" of
the platform or board member of the device; and
FIG. 5 is a transverse, vertical cross sectional view taken through
the ski training device along the line 5--5 of FIG. 1.
DESCRIPTION OF PREFERRED EMBODIMENT
For simplicity of illustration and description, the accompanying
drawing illustrates only one of a pair of identical skate
board-type devices which are to be worn on the two feet of
skier-trainee. Each such device comprises an elongated, generally
rectangular platform or board 10 of a width approximating that of
an ordinary snow ski and a length sufficient to support the skier
when his body is in a forward leaning position. Mounted on the
board 10 is a standard, release-type ski boot binding mechanism 11,
as illustrated by broken lines in FIGS. 1 and 3. It should be
understood that the ski boot and binding mechanism, as shown in
FIGS. 1 and 3, are conventional and ordinarily will comprise those
usually worn by the skier and applied to his snow skis. As such,
the boots and binding 11 comprise no part of the present invention
other than as a means for attaching the training devices to the
feet of the skier or trainee.
Rigidly secured to the underside of the board 10 are three,
longitudinally spaced apart, axle-supporting brackets 12. As shown
in FIG. 1, the brackets 12 are positioned so that there is one
bracket at each end and at the middle of the board 10, and each
bracket 12 is preferably formed from metal and possesses a
generally inverted U-shape. The brackets are formed with axially
aligned bearing openings 13 through which extend a single axle
shaft 14. The axle 14 is disposed in downwardly spaced parallel
relation to the longitudinal axis of the board 10 and rotatably
supports thereon three wheels or rollers 15 between the side webs
of the brackets 12. The wheels or rollers 15 preferably include
anti-friction bearing hubs, not shown, which permit each of the
rollers to rotate independently on the axle with minimal friction.
Thus, the rollers 15 are arranged to roll in planes perpendicular
to the axle 14 and to the longitudinal axis of the board 10, and
thus support the board for lateral or sidewise movement.
Also mounted on the axle 14, between the forward end and middle
brackets 12, is a braking means generally designated at 16. The
braking means comprises a generally rectangular or cubical block 17
of wood or metal formed with a vertically elongated slot 18 through
which the axle 14 passes (see FIG. 5). The block 17 is provided on
its undersurface with a relatively thin, flat friction pad 19
formed from rubber or other elastomeric composition. The block 17
is formed in its central, upper side regions with a pair of notches
or recesses 20 in each of which is adhesively or frictionally
secured a generally rectangular or cubical pressure block or pad 21
of resiliently compressible rubber or rubber-like material. Each of
the pressure pads 21 extends a distance above the upper surface of
the block 17 and terminates in relatively closely spaced relation
to the under surface of the board 10. The longitudinal position of
the braking means 15 on the axle 14 may be adjusted within limits
by means of a pair of set screw-type stop collars 22 carried on the
axle 14 at the opposite ends of the brake block 17. In other words,
the stop collars 22 may be loosened on the axle 14 to permit the
braking means 16 to be shifted longitudinally on the axle between
the middle and end brackets 12 to any desired position. The stop
collars 22 may then be refastened by their set screws to the axle
to fix the longitudinal position of the brake means thereon. The
elongated axle slot 18 permits the lower friction pad 19 to engage
an underlying supporting surface 23 regardless of wear on the pad
19, and relieves the axle of the weight of the brake means and the
forces applied to the brake means upon sidewise tilting or "edging"
of the board 10, as will be more fully explained. Also, in certain
instances, it may be desirable to provide an additional, though
identical, brake means or assembly 16 between the middle bracket 12
and the opposite end bracket.
OPERATION
In operation, a pair of the training devices is secured to the
boots and feet of the skier-trainee by means of the bindings 11 in
the same fashion as would be a pair of conventional snow skis. Now,
depending upon the position of the skier's body and feet, the skier
may cause the devices to roll or pivot to either side to simulate
foot and body actions required or desired for parallel turns, or
may practice or simulate "edging" techniques necessary for side
stepping up a hill, or for snowplow braking or turns. These various
movements or exercises may be practiced either on a flat or
inclined floor or pavement surface, and by transverse tilting or
"edging" of the boards 10 in either direction, the skier may apply
controlled pressure through either of the pressure pads 21 to the
brake block 17 and its friction shoe 19 to retard and/or prevent
sidewise movement of the boards on the wheels 15. This braking
action is illustrated diagrammatically in FIG. 4 in which it will
be noted that as the board 10 is tilted or angled sidewise in
either direction from a horizontal position, the underside of the
board eventually engages and presses downwardly upon the underlying
pressure pad 21 of the braking means 16. The force applied to
either of the pads 21 is transmitted through the brake means 16 and
friction pad 19 and is converted to a frictional force acting upon
the supporting surface 23. The height and resiliency of the
pressure pads 21 enables the skier to apply variable but controlled
braking forces to the brake means simply by controlling the degree
of inclination or "edging" of the board and by adjusting his center
of gravity longitudinally with respect to the brake means. In
certain exercises, it may be desirable to apply only light force to
the brake means to cause the brake shoe 19 to only lightly drag
upon the supporting surface. In other exercises, such as for
example in practicing parallel turns on a downwardly inclined
supporting surface, it is desirable to apply a maximum of braking
force to the brake means by simultaneously "edging" steeply toward
the "uphill" sides of the boards while leaning the body forwardly
to thus use the brake means as a fulcrum during the pivoting of the
boards first in one sidewise direction and then in an opposite
sidewise direction.
In view of the foregoing, it will be seen that the present
invention provides an inexpensive, yet efficient and extremely
realistic training and/or exercising device which may be used both
by the novice as well as by the experienced skier to simulate and
practice various foot and body movements and positions required for
proficiency in skiing.
While a single preferred embodiment of the invention has been
illustrated and described in detail, it will be understood that
various modifications in details of construction and design are
possible without departing from the spirit of the invention or the
scope of the following claims.
* * * * *